A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.
NSN 5905-01-187-7931
NSN 5930-01-493-8932
NSN 4140-01-067-8242
NSN 5925-01-157-9795
NSN 6110-01-268-1723
NSN 6135-01-426-8282
NSN 5855-00-433-2377
NSN 6610-00-149-1534
NSN 5920-01-461-2158
NSN 6620-01-632-2154
NSN 6645-01-550-9669
NSN 5895-00-568-8304